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🔍 Hear Beyond Walls, Stay Ahead of the Game
The F999B Super Sensitive Listen Thru-wall Contact/Probe Microphone Amplifier System is a professional-grade surveillance tool designed to detect sound through solid surfaces like concrete, metal, and wood. Featuring a powerful 20000x gain amplifier, four audio channels, and a 24-hour lithium battery, it delivers superior audio clarity in a durable metal casing. Ideal for investigative professionals seeking discreet, high-sensitivity listening capabilities with a 5-year warranty and private purchase option.
| ASIN | B01L9AMY9Y |
| Antenna Location | Investigation, Surveillance |
| Audible Noise | 70 db |
| Audio Sensitivity | 70 db |
| Best Sellers Rank | #150,729 in Electronics ( See Top 100 in Electronics ) #896 in Audio Component Amplifiers |
| Brand | Kstpower |
| Built-In Media | amplifier, battery, warranty card |
| Color | silver |
| Compatible Devices | ['Smartphone', 'Laptop', 'Personal Computer', 'Tablet', 'Camera', 'Headphone', 'Radio', 'Speaker', 'Karaoke Machine', 'Amplifier', 'Gaming Console'] |
| Connectivity Technology | Auxiliary |
| Connector Type | 3.5 mm Jack |
| Customer Reviews | 3.4 out of 5 stars 26 Reviews |
| EU Spare Part Availability Duration | 5 years |
| Enclosure Material | Wood |
| Frequency Response | 20 KHz |
| Impedance | 32 ohm |
| Item Dimensions | 9.06 x 7.09 x 2.76 inches |
| Manufacturer | Kstpower |
| Mfr Part Number | F999B |
| Microphone Form Factor | Mini |
| Model Name | F999B |
| Model Number | F999B |
| Number of Channels | 4 |
| Polar Pattern | Omnidirectional |
| Power Source | Battery Powered |
| Recommended Uses For Product | Investigation, Surveillance |
| Signal-to-Noise Ratio | 70 db |
| Special Feature | 3.5mm jack |
| UPC | 723800422475 |
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